Thanks a lot Geekmaster,
my KT is working again , it was a little tricky but I could get my hands on a windows box and followed your step by step description.
I think the whole mess started because the KT was not fully charged as I tried to jailbreak it.
So something went wrong and my KT was looped in diagnostics responded very slowly and by chance I put it in fast boot
in fast boot mode nothing worked anymore....no USB mode, no reset the screen was frozen in diagnostics.
During the 'repair' with mfg-tools and a fully charged battery something strange happened:for three times the KT booted to a blank screen with a big battery charging symbol and no response to any bottom then by putting the KT in diagnostic with mfg-tools it was looped again booted always in diagnostics.the fix came as I put the KT in Norm with mfg-tools and kept the USB connected for a little longer time (5min) suddenly a reboot with the famous tree, wow
Ok this time I learned it the hard way,
for the next time first the reading, then the fiddling
Brds
sib.husky